Queueing theory is the mathematical study of waiting lines, or queues. In queueing theory a model is constructed so that queue lengths and waiting times can be predicted.
Queueing theory started with research by Agner Krarup Erlang when he created models to describe the Copenhagen telephone exchange. The ideas have since seen applications including telecommunications, traffic engineering, computing and the design of factories, shops, offices and hospitals.
Read more about Queueing Theory: Overview, History, Application To Telephony, Queueing Networks, Utilization, Role of Poisson Process, Exponential Distributions, Limitations of Queueing Theory
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